"Nothing in this world can take the place of persistence. Talent will not: nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not: the world is full of educated derelicts. Persistence and determination alone are omnipotent."

"Now I'm sure many of you in this room have experienced this in some form. You must know how uncanny it is to suddenly be thrown out of the normal course of your life and just be given the full time job of not dying, or caring for someone who is. But the one thing people tend to realize at moments like this is that they wasted a lot of time when life was normal. And it's not just what they did with their time, it's not just that they spent too much time working or compulsively checking email, It's that they cared about the wrong things; they regret what they cared about; their attention was bound up in petty concerns, year after year, when life was normal, and this is a paradox. Because we all know this epiphany is coming. I mean, don't you know this is coming? Don't you know there's going to come a day when you'll be sick or someone close to you will die and you'll look back at the kinds of things that captured your attention and you'll think, "What, what was I doing?""

"The truth hurt but denial's what will kill you." The truth of a liar by August Burns Red

" You claim, you claim you were built to fall. You were never strong enough. Heroin has no healing to this unfortunate tragedy. Don't stray from what you've become now, to who you were then. With a needle in your arm, now affection has abandoned you, can you still feel?" Chasing the dragon by August Burns Red

My favorites is
"Don't pick up if you don't pick up you won't get high, it's im-fucking-possible"
"Easy does it" sometimes I change that to "Steezy does it"
When I was going through w/d's it was
"No sympathy for the devil; keep that in mind. Buy the ticket, take the ride" - Hunter Thompson.